VZ Exec - Hooking up Air/Fuel Guage connection to use?

[bigdaddycool]

Got a Calibre Air/Fuel Guage which I need to hook up, just a narrowband.

The Air/Fuel Sender wire, which from what I've read up on hooks to an O2 sensor...... I have 4 o2 sensors......... If I am correct after looking at the VCM Scanner, one side of my engine is variable cam timing, the other isnt.......... which gives one bank (left or right) ........ more accurate readings for the air/fuel.

Which wire do I hook it to, which O2 sensor should I rig it to?

[Exidor]

VZ Alloytecs 175/170's have variable cams on
both inlets.
190's have variable on all 4 cams.

[bigdaddycool]

does anyone know what colour the signal wire is off the o2 sensor for the air/fuel guage? it's all connected just dunno what wire.

UPDATE:

I have discovered that my front O2 sensors are actually wideband sensors after much research and testing with my multimeter........ fronts are 5 wire, rears are 4 wire. I have a narrowband guage so i'll have to run my wire under the car to the rears now......... as i cbf buying a wideband afr guage. I got 2 white, 1 grey, one black. When I figure out what wire i'll post results.

[bigdaddycool]

Turns out it was the black wire on the rear bank o2........ for a narrowband guage

EDIT: I'm not sure on this now, my guage is tanking (reading zero) and seems to be effected by my stereo so the black wire may indeed be an earth. when i get a chance i'll check the grey wire......... see what it reads out.